Global Patent Index - EP 1935963 B1

EP 1935963 B1 20100210 - Liquid-crystalline medium

Title (en)

Liquid-crystalline medium

Title (de)

Flüssigkristallines Medium

Title (fr)

Milieu à base de cristaux liquides

Publication

EP 1935963 B1 20100210 (EN)

Application

EP 07023957 A 20071211

Priority

  • EP 06026256 A 20061219
  • EP 07023957 A 20071211

Abstract (en)

[origin: EP1935963A1] The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy, which contains at least one compound of formula I and at least one compound of formula 1*, wherein R 1 , R 2 , R 1* and R 2 are each independently alkyl or alkoxy with 1 to 8 C atoms, where one or more CH 2 -groups in these radicals can be replaced by -CH=CH-, are each independently but at least one of the rings A, B and C is L 1-4 are each independently Cl, F, CF 3 or CHF 2 , preferably L 1-4 are each F, and s is 0 or 1, and their use in an electro-optical display.

IPC 8 full level

C09K 19/44 (2006.01)

CPC (source: EP KR US)

C09K 19/3003 (2013.01 - KR); C09K 19/3059 (2013.01 - KR); C09K 19/42 (2013.01 - KR); C09K 19/44 (2013.01 - EP US); G02F 1/1333 (2013.01 - KR); C09K 2019/123 (2013.01 - EP US); C09K 2019/3006 (2013.01 - KR); C09K 2019/3063 (2013.01 - EP US); C09K 2323/00 (2020.08 - EP US)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1935962 A1 20080625; AT E457339 T1 20100215; CN 101323786 A 20081217; CN 101323786 B 20140618; DE 602007004705 D1 20100325; EP 1935963 A1 20080625; EP 1935963 B1 20100210; JP 2008266567 A 20081106; JP 5410016 B2 20140205; KR 101458637 B1 20141105; KR 20080057175 A 20080624; TW 200848498 A 20081216; TW I460253 B 20141111; US 2008191166 A1 20080814; US 7803434 B2 20100928

DOCDB simple family (application)

EP 06026256 A 20061219; AT 07023957 T 20071211; CN 200710307626 A 20071219; DE 602007004705 T 20071211; EP 07023957 A 20071211; JP 2007326116 A 20071218; KR 20070133319 A 20071218; TW 96148472 A 20071218; US 96002307 A 20071219